PCB diagram for the NP-Q40 notebook, a schematic PDF of about 1.28 MB; NP-prefixed names are the convention Samsung applies to its laptop models.

Philco laptop schematic labeled B1XIEXX, version 1.0, with a date code of 20091219 that probably corresponds to December 19, 2009.

Schematic diagrams for the Huawei S10, a compact 876 KB PDF. A technician can use the circuit pages to follow supply rails from the battery and charger IC, check signal…

Circuit schematics for the Nokia 6021, provided as a 1.23 MB PDF without a revision in the name.

Drawing package for the X121E notebook, carrying the DM NOTE HR FL8 project label, revision B and a 20110131A date, apparently the same design used for the related…

Schematic for the Lenovo B450 in a compact 819 KB PDF. The name also contains la and 14, which could refer to a board or revision but cannot be read with confidence, so…

Circuit diagram of the Compal LS-4493P media board, Rev 1.0, from the KAL90 platform. The small 28.3 KB PDF documents the button board carrying media or multimedia keys…

Datasheet for the 2SD1815 in PDF format, 154 KB, catalogued as a schematic. Apart from the type number, the name carries no extra details.

PDF of about 25.4 KB for the 3SK303 semiconductor, filed in the schematic category. The file name holds only the part number.

Small 42.2 KB PDF filed as a schematic for the 3N256 part. Under the JEDEC system the 3N prefix marks a registered device with four leads, and the same size across 3N253…

Datasheet-style PDF of 118 KB for the 2SD1898, recorded in the index as a schematic but named after a single component.

A 91.5 KB PDF titled with the JIS part number 2SD1886, which suggests a component datasheet even though the index tags it as a schematic.

The 2SK2740 transistor is the subject of this 143 KB PDF, filed as a schematic even though the name points to a component datasheet.

A 407 KB PDF for the 2SK2602, a part number following the Japanese JIS convention in which 2SK designates an N-channel field-effect transistor.

Filed as a schematic, this 412 KB document named 2SK2229 most likely contains the datasheet for that Japanese-numbered N-channel FET.

Part number 2SK1906 is all the name reveals about this 96.0 KB PDF, which sits in the schematic category.

A 117 KB PDF catalogued as a schematic but named after the 2SK1458 part number, so it most likely holds the manufacturer's data sheet for that semiconductor.

The 2SK1442 is the sole detail in the name of this 107 KB PDF, which is categorised as a schematic.

PDF for the 2SJ306, about 94.4 KB. The name contains just the transistor type, so no device, board or revision can be stated.

Named 2SD1350_E, this 44.0 KB PDF sits in the schematic category but most likely holds the datasheet for the 2SD1350, an NPN low-frequency bipolar transistor under…

Specification sheet for the 2SD874 transistor in PDF form, about 44 KB, catalogued with the schematics but actually a component datasheet.

The 2SC4429 is the only information carried by this 107 KB PDF name. Following Japanese JIS semiconductor numbering, 2SC stands for an NPN bipolar transistor, so the…

Component documentation for the 2SC4269 in PDF form, 108 KB in size, listed in the schematic category. Nothing beyond the part number appears in the name.

Part number 2SC4223 is all the file name gives, so this 93.9 KB PDF is best treated as a datasheet for that component rather than a circuit schematic.

Listed under schematics, this 36.9 KB PDF belongs to the 2SC5538, which the Japanese JIS prefix identifies as an NPN bipolar transistor.

Part 2SC3991 is the only information carried by this 113 KB PDF, which the index lists as a schematic although the name points to a discrete component datasheet.

PDF documentation for the 2SC4793 transistor, at 173 KB larger than most files in this series and probably a fuller datasheet with characteristic curves.

Named simply 2SC3399, this 86.9 KB PDF refers to a Japanese-registered NPN transistor; the 2SC prefix under JIS indicates a high-frequency type.

PDF of 309 KB for the 2SC1815L, an L-suffixed version of a JIS-numbered NPN bipolar transistor, filed under schematics.

A 52.7 KB PDF for the 2SB1672, which the JIS 2SB prefix identifies as a PNP transistor, so the file is expected to be a component datasheet even though it is catalogued…

PDF reference for the 2SA1682, a part number following the Japanese JIS scheme in which 2SA identifies a PNP bipolar transistor of the high-frequency class.

Datasheet in PDF format for the 2SA1579 transistor, 36.6 KB. Only the part number is given in the name.

A 59.2 KB PDF describing the 2sb1275 transistor, filed as a schematic though the name points to a single part.

Part document for the 2SA1511, an 88.3 KB PDF filed in the schematic category. Its name follows the Japanese JIS designation in which 2SA denotes a PNP bipolar…

PDF reference of 143 KB for the 2SA1419, a JIS-numbered part whose 2SA prefix denotes a PNP transistor in the high-frequency class.

Component sheet for the 2SB779, delivered as a 40.5 KB PDF. It is catalogued as a schematic, though a name consisting of a bare part number indicates a datasheet.

Transistor datasheet in PDF form for the 2SA720A, 42.4 KB, with an _E suffix whose meaning the name does not state.

Datasheet in PDF form for the 2SA1018 transistor, filed in the index under schematics, with an E suffix in the name that likely marks a document edition or variant.

Datasheet for the 2N3859A in a 59.0 KB PDF, the A suffix forming part of the registered part number as given in the name.

Component documentation for the 1SS384, a 68.8 KB PDF in the schematic category. The name provides only the part number, so no device, brand or board revision can be…